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Season 1 – Betrayal

Play trailer Poster for Season 1 – Betrayal Feb 2026 Mystery & Thriller Play Trailer Watchlist
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86% Tomatometer 7 Reviews Popcornmeter Fewer than 50 Ratings
When an assassination links veteran MI5 agent John Hughes to a conspiracy, he must uncover the truth to save his career, marriage, and Britain from an imminent threat.

Critics Reviews

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Scott Bryan BBC.com Mar 11
Not a Must Watch
I enjoy the fact that it's spinning a bit differently than how ITV dramas normally do. I like the fact that it is really quite sweary and quite dark from the off. That is against your expectations. But unfortunately, it just didn't hook me in. Go to Full Review Jack Seale Guardian Feb 11
3/5
Like his co-star Garai, Shaun Evans succeeds more in spite of the material he’s given than because of it, bringing a bewildered vulnerability to John’s struggle to be better. Go to Full Review Nick Hilton Independent (UK) Feb 11
3/5
It is the dramatic equivalent of a microwave dinner. Sustaining, but not nourishing. Even an intriguing, sophisticated idea -- lasagna al forno -- becomes edible, inoffensive mush under these demands. Go to Full Review Adam Sweeting The Arts Desk Feb 13
4/5
But what [the series] does successfully is to depict the way intelligence work is often mundane, dirty and squalid, a seedy back-street affair rather than a globe-trotting thrill ride starring Tom Cruise. Go to Full Review Read all reviews

Audience Reviews

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Edward L @Glyndower Feb 13 Third-rate thriller with a second-rate cast. Because the first team were otherwise engaged we get Evans giving his dull laconic Endeavour performance instead of Hiddleston; the appalling Bird instead of Varma as the incompetent/corrupt senior espionage official and Djalili attempting yet again to escape his comedic past and failing miserably as always. The characters are stereotyped: the chippy working-class spy in a failing marriage and in conflict with his more upmarket superiors; Iranian students from hell and Mancunian drug dealers. Dross. See more Read all reviews
Betrayal — Season 1

My Rating

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Cast & Crew

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Shaun Evans

John Hughes

Romola Garai

Claire Wardly

Zahra Ahmadi

Mehreen Askari-Evans

Gamba Cole

Rudy Kember

Omid Djalili

The General

Anthony Flanagan

Craig Beeston

Episodes

Episode 1 Aired Feb 8, 2026 Piles When MI5 operative John Hughes meets with a British-Iranian informant who claims to have intelligence about a threat to national security, the informant is killed before he can talk; John, in self-defence, shoots the assassin dead; John is chastized by his boss Simone, who warned him not to follow that lead, all evidence points towards the informant's death being a gangland dispute. Details Episode 2 Aired Feb 9, 2026 Ordinary Milk John is still reeling after his discovery that a proxy attack is possibly being planned on UK soil to target a prominent Iranian dissident; when a visit to John's informant's widow throws up contradictory evidence, John becomes convinced that there is a cover-up which permeates to the highest level; John's refusal to accept voluntary redundancy means that his relationship with Claire is on thin ice. Details Episode 3 Aired Feb 15, 2026 A Thing, Thing John and Mehreen recover from their stand-off with Major General Qasem Asadi and the Stockport crime gang; with MI5 now finally on his side, John tracks the general to a high-end hotel; John and Mehreen must go undercover to uncover whether Qasem is the mastermind behind a potentially explosive threat to national security. Details Episode 4 Aired Feb 16, 2026 Soup to Nuts John must escape captivity as he races to intercept an attack at a university, but those who want the attack to go ahead will stop at nothing, threatening those John holds dearest. Details
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Betrayal — Season 1

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Season Info

Director
Julian Jarrold
Executive Producer
Shaun Evans, Damien Timmer
Screenwriter
David Eldridge
Network
ITV
Genre
Mystery & Thriller
Original Language
British English
Release Date
Feb 8, 2026